BECKHOFF BK9050

Product Name

Ethernet TCP/IP Bus Coupler

Product Overview

The Beckhoff BK9050 is a compact Ethernet bus coupler that connects Beckhoff Bus Terminals to industrial Ethernet networks. It supports TwinCAT ADS and Modbus TCP protocols and enables flexible expansion of digital and analog I/O signals.

Category:
Description

Technical Specifications

Up to 64 Bus Terminals, expandable to 255 with K-bus extension; 512 bytes input + 512 bytes output process data; up to 1020 digital I/O points; up to 128 analog I/O points; 1× RJ45 port, 10/100 Mbit/s auto-detection; 24 VDC supply voltage (–15%/+20%); K-bus supply capacity 1750 mA.

Functional Features

Auto-detection of connected terminals; automatic I/O process image mapping; IP configuration via DIP switch or DHCP; compatible with multiple industrial Ethernet protocols; compact design saves cabinet space.

Application Scenarios

Distributed industrial control systems, production line data acquisition, building automation, process monitoring systems, intelligent warehousing equipment.

Performance Parameters

Operating temperature 0 °C to +55 °C; storage temperature –25 °C to +85 °C; relative humidity up to 95% non-condensing; weight approx. 100 g; 500 V electrical isolation.

Material Composition

Flame-retardant engineering plastic housing, gold-plated bus contacts, industrial-grade electronic components, metal mounting latches.

Structural Features

Ultra-slim modular design; bus interface on left side; daisy-chain connection to Bus Terminals on right side; front panel with status indicators; bottom DIN-rail mounting clips.

Working Principle

Acting as a gateway between Ethernet and the local K-bus, it converts Ethernet protocol data into bus signals recognized by the terminal modules. It periodically scans I/O terminal states and uploads data, while sending control commands to output terminals.

Installation Requirements

DIN-rail mounting with reliable rail grounding; use standard shielded twisted-pair Ethernet cable, maximum length 100 m; ensure power supply meets ripple requirements; power filter is recommended.

Usage Notes

Do not plug or unplug Bus Terminals under power; avoid routing together with high-voltage power cables; follow strict procedures for firmware updates; clean contact surfaces periodically to prevent oxidation.

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